Hyundai Mobis develops new battery cooling technology

To prevent overheating in electric vehicle batteries, Hyundai Mobis has produced a new battery cell cooling material, energetic reported. 

To increase its competitiveness in the upcoming mobility sector, the corporation wants to secure this breakthrough battery cooling technology and commercialise it.

This substance, known as the "Pulsating Heat Pipe," is positioned between battery cells to reduce the internal battery temperature that rises during rapid charging. It is made of aluminium alloy and refrigerant. By putting in place a reliable thermal management system that can handle the heat, it is anticipated that ultra-fast charging can drastically cut down on the amount of time needed to charge electric vehicles, even as battery heat generation increases.

Heat pipes are high-heat-dissipation materials used to cool electronic devices like computer CPUs and cellphones. They are metal tubes that improve the efficiency of heat transfer between two items.

In particular, pulsing heat pipes disperse heat by means of internal refrigerant circulation and vibration, causing minimal performance degradation owing to gravity, even when used in high-speed moving vehicles. more than ten times the efficiency of heat transport when compared to the norm. The heat from overheated battery cells is quickly transferred to the outside using aluminium.

Battery management systems (BMS), cooling fans, and other electronic equipment are typically added to numerous battery modules (BMA) to make battery systems (BSA). Optimising the cooling structure is crucial to preventing battery cell overheating in BMA, a module-level component that directly generates electrical energy and has several battery cells stacked. PHPs were successfully positioned between each battery cell by Hyundai Mobis. They stabilised the internal temperature at the module level by swiftly transferring the heat produced in each cell to cooling blocks.

Making the PHP manufacturing process simple, Hyundai Mobis used a press process technology and decreased production costs by permitting large-scale continuous production during the manufacturing stage.

It also achieved PHPs with a thickness of only 0.8mm, which is much smaller and has a bigger area than traditional heat pipes (about 6mm) to make mounting on vehicle batteries easier. The objective of this improvement in product quality is to encourage the use of electric vehicles.